The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
"First printed, January 1899; reprinted March 1899, April 1899 (twice) May 1899, June 1899, November 1899, July 1900, May 1901, March 1904, November 1908. Reissued 1910."